why does psych yaml interpreter add line breaks around 80 characters?

Question

Psych is the default yaml engine since ruby 1.9.3

Why, oh why does psych add a line break in its output? Check the example below.

ruby -v # => ruby 1.         


        

Answer 1

You'll have to configure psych’s #to_yaml options. You'll most likely find it here:

ruby-1.9.3-p125/ext/psych/emitter.c

And then you can do something like this:

yaml.to_yaml(options = {:line_width => -1})